The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 12, 2021
Filed:
Jul. 23, 2019
Applicant:
Powerchip Semiconductor Manufacturing Corporation, Hsinchu, TW;
Inventors:
Hann-Jye Hsu, Hsinchu, TW;
Cheng-Yuan Hsu, Hsinchu, TW;
Assignee:
Powerchip Semiconductor Manufacturing Corporation, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/423 (2006.01); G11C 16/26 (2006.01); H01L 29/08 (2006.01); H01L 23/528 (2006.01); G11C 16/14 (2006.01); H01L 29/788 (2006.01); H01L 29/49 (2006.01); H01L 29/66 (2006.01); H01L 21/28 (2006.01); H01L 21/3213 (2006.01); H01L 21/311 (2006.01); H01L 21/02 (2006.01); H01L 21/265 (2006.01); G11C 16/04 (2006.01); G11C 16/10 (2006.01); H01L 27/11524 (2017.01);
U.S. Cl.
CPC ...
H01L 29/42328 (2013.01); G11C 16/0408 (2013.01); G11C 16/10 (2013.01); G11C 16/14 (2013.01); G11C 16/26 (2013.01); H01L 21/0217 (2013.01); H01L 21/0223 (2013.01); H01L 21/26513 (2013.01); H01L 21/31111 (2013.01); H01L 21/32133 (2013.01); H01L 23/528 (2013.01); H01L 27/11524 (2013.01); H01L 29/0847 (2013.01); H01L 29/40114 (2019.08); H01L 29/4916 (2013.01); H01L 29/66825 (2013.01); H01L 29/7883 (2013.01); H01L 21/02255 (2013.01);
Abstract
A flash memory with assistant gates, including two floating gates disposed on a substrate, an insulating layer formed on the two floating gates and the substrate, an assistant gate disposed between the two floating gates, wherein a portion of the assistant gate wraps around the two floating gates, and two select gates disposed respectively outside the two floating gates and partially overlap the two floating gates.